LOGIC, n. The art of thinking and reasoning in strict accordance with
the limitations and incapacities of the human misunderstanding. The
basic of logic is the syllogism, consisting of a major and a minor
premise and a conclusion -- thus:

Major Premise: Sixty men can do a piece of work sixty times as
quickly as one man.Minor Premise: One man can dig a posthole in sixty seconds;
therefore --Conclusion: Sixty men can dig a posthole in one second.

This may be called the syllogism arithmetical, in which, by
combining logic and mathematics, we obtain a double certainty and are
twice blessed.